Pressurized Water Fire Extinguisher
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{{Wiktionary Pressurization or pressurisation is the application of
pressure Pressure (symbol: ''p'' or ''P'') is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled ''gage'' pressure)The preferred spelling varies by country and e ...
in a given situation or environment.


Industrial

Industrial equipment is often maintained at pressures above or below atmospheric.


Atmospheric

This is the process by which atmospheric pressure is maintained in an isolated or semi-isolated atmospheric environment (for instance, in an
aircraft An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines ...
, or whilst
scuba diving Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface air supply. The name "scuba", an acronym for "Self-Contained Underwater Breathing Apparatus", was coined by Chris ...
).


See also

* Cabin pressurization *
Compressed air Compressed air is air kept under a pressure that is greater than atmospheric pressure. Compressed air is an important medium for transfer of energy in industrial processes, and is used for power tools such as air hammers, drills, wrenches, and o ...
* Decompression (diving) * Decompression (physics) * Gas compressor * :Units of pressure * Pressurisation ductwork Pressure it:Pressurizzazione (aeronautica)